👉 In geology, a nonzonated mineral is a mineral that has been exposed to the air and weathering but not subjected to any mechanical processes such as crushing or polishing. This means that it has not undergone any changes in its structure or composition due to exposure to the environment. Examples of nonzonated minerals include quartz, mica, chalcopyrite, and calcite. Nonzonation is a property that distinguishes these minerals from other types of minerals, which are generally formed by
